[Ips-dsgr] IPS Daily Report - 29 October 01
rwc
rwc at ips.gov.au
Tue Oct 30 10:34:53 EST 2001
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 29/2330Z OCTOBER 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 29 OCTOBER AND FORECAST FOR 30 OCTOBER - 01 NOVEMBER
STATUS INDICATORS SOL:*YELLOW* MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 29 Oct: Moderate
Flares Max Fadeout Freq. Sectors
M1.4 0159UT possible lower E. Asia/Aust.
M3.9 1113UT possible lower European
Observed 10.7 cm flux/Equivalent Sunspot Number for 29 Oct: 216/166
1B. SOLAR FORECAST
30 Oct 31 Oct 01 Nov
Activity Moderate Moderate Moderate
Fadeouts Possible Possible Possible
10.7cm/SSN 210/161 205/156 200/152
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 29 Oct: Quiet to Active
Estimated Indices 29 Oct : A K
Australian Region 13 2333 3334
Darwin 12 2332 3334
Learmonth 15 3333 3334
Canberra 13 2333 3334
Hobart 11 2333 3223
Observed Regional daily pc3 Indices 29 OCT :
Darwin 0 (Quiet)
Townsville 0 (Quiet)
Learmonth NA
Canberra 9 (Quiet)
Hobart 6 (Quiet)
Pc3 pulsations are high frequency (10-45 second period) variations
of the Earths magnetic field. Daily pc3 indices are the daily sum
of 20 minute pc3 indices for that station.
Estimated AFr/Ap Indices 29 Oct : A
Fredericksburg 15
Planetary 15
Observed AFr/Ap Indices 28 Oct : A K
Fredericksburg 34
Planetary 41 2666 5443
2B. MAGNETIC FORECAST
Date Ap Conditions
30 Oct 12 Quiet to unsettled with possible active periods.
31 Oct 10 Quiet to unsettled
01 Nov 10 Quiet to Unsettled
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
29 Oct Poor-normal Poor-normal Poor-normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
30 Oct Normal-fair Normal-fair Normal-fair
31 Oct Normal Normal Normal-fair
01 Nov Normal Normal Normal-fair
COMMENT: HF conditions were significantly degraded during the
period 00-10UT following the impact of a CME early on 28 October.
Depressions of 30-50% were observed at times for most latitudes.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
29 Oct 102
Observed Australian Regional MUFs
Equatorial PNG Region:
Depressed by 15-30% during local day,
Near predicted monthly values during local night.
Northern Australian Region:
Depressed by 30-50% during local day,
Near predicted monthly values during local night.
Southern Australian and New Zealand Region:
Depressed by 15-30% during local day,
Enhanced by 15% during local night.
Antarctic Region (Casey/Scott Base):
Near predicted monthly values to depressed 20%.
Predicted Monthly T index for October: 106
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
30 Oct 130 depressed 5 to 15%/near predicted monthly values
31 Oct 150 Near predicted monthly values
01 Nov 150 Near predicted monthly values
COMMENT: HF conditions were significantly degraded during the
period 00-10UT following the impact of a CME early on 28 October.
Depressions of 30-50% were observed at times for most latitudes.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 28 Oct
Daily Proton Fluence >1 MeV: 2.0E+07
Daily Proton Fluence >10 MeV: 5.5E+04
Daily Electron Fluence >2 MeV: 2.80E+05 (normal)
X-ray background: C2.2
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
ACE Satellite Solar Wind Day Averaged Data for 28 Oct
Speed: 463 km/sec Density: 7.9 p/cc Temp: 130000 K Bz: -7 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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IPS Radio and Space Services | email: asfc at ips.gov.au
PO Box 1386 | WWW: http://www.ips.gov.au/asfc
Haymarket NSW 1240 AUSTRALIA | FTP: ftp://ftp.ips.gov.au/users/asfc/
tel: +61 2 9213 8010 | fax: +61 2 9213 8060
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